The public drama, which pits Robin Thicke, Pharrell Williams and T.I. against Marvin Gaye's family, provides a tantalizing glimpse into how the profits from a worldwide smash are split.

The ongoing "Blurred Lines" trial has proved more than a copyright clash over the most popular song of 2013 -- it has provided an in-depth look at where the money goes when a tune becomes a global hit. With bombshell financial information revealed in court on March 3 ($16.7 million in profits for the parties involved in the case), as much as $40 million could be at stake if the Los Angeles federal court jury decides co-writers Robin Thicke, Pharrell Williams and T.I. copied the song from Marvin Gaye's 1977 track "Got to Give It Up." 

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